1. if the discount is 75% and the sales price is 74.75 then what is the original price 2. if the original price is 55 bucks and the sales price is $46.75 what is the discount
3. If the cost to store is $20 and the selling price is $32 what is the selling price
4. Finally, If the markup is 80% and the selling price is $21.60 what is the cost to store

*pls show work

Which two properties of equality could zoe use to finish solving for x? the equation is 3x - 4 = -10 for x so a either the addition or subtraction property of equalityb ether the multiplication or division property of equality c ether the addition or division property of equality d ether the subtraction or division property of equality just a simple a b c or d plz.